clk4 = ~clk4;
assign lcdclk = clk4;
+ /***** Video RAM *****/
+ /* Base is 0x8000
+ *
+ * Tile data from 8000-8FFF or 8800-97FF
+ * Background tile maps 9800-9BFF or 9C00-9FFF
+ */
+ reg [7:0] tiledata [6143:0];
+ reg [7:0] bgmap1 [1023:0];
+ reg [7:0] bgmap2 [1023:0];
+
/***** LCD control registers *****/
reg [7:0] rLCDC = 8'h91;
reg [7:0] rSTAT = 8'h00;